Since ancient times, the Chinese people's idea of ​​"Heaven and Man together" has embodied every angle of life. 24 The changes in solar terms also affect people's clothing, food, shelter, and behavior. The ancients say: Spring flowers, summer leaves, autumn fruits, and winter roots. Radishes, lotus root, potatoes, yam and other "root vegetables" have lower pesticide residues than other vegetables and are often safer.
In autumn and winter season, seasonal root vegetables are listed in large quantities. At this time, the root vegetables are fresh, inexpensive and resistant to storage. Therefore, it is a good time to eat root vegetables in autumn and winter. Let's take a look at the nutrition of common root vegetables.
â– Radish
As the saying goes: "When it comes to eating radish in summer and eating ginger in winter, there is no prescription for doctors in a year." In China, folk radishes known as "small ginseng" can be said to be one of the best products for autumn and winter. Raw food can not only help digestion, increase appetite, but also to greasy, digestion and gas; if the food is made with other food partners, there are different effects. There are many types of radish, including white, red, green, red, white, and round, long and other varieties, but this does not include carrots. It is suitable for both raw and cooked foods. It is spicy and cold in nature, sweet and cool in ripening, and has high nutritional value and medicinal value. In order to praise the radish, the poet of the Yuan Dynasty also wrote such a poem: "The cooked food is like a clam and the raw food is brittle like a pear." At the same time, the famous medical scientist Li Shizhen also highly praised the radish and advocated that each meal must be eaten. He mentioned in the "Compendium of Materia Medica" that: radish can be "under the air, eliminate valleys, and go to evil heat."
Radish has a unique spicy taste, raw food can help digestion, stomach digestion, increase appetite, eat meat and other greasy foods, raw radish can be solved and refreshing to make the abdomen and abdomen comfortable; over-eating sweet potato stomach full of soreness, eat raw Radish or chewing salted radish can eliminate cis. At the same time, raw radish can also promote bile secretion and help digest fat.
In addition, radish is one of the main raw materials of pickles, kimchi, and dried ingredients. In addition to glucose, sucrose, fructose, polypentose, crude fiber, vitamin C, minerals, and a small amount of crude protein, nutrients contain various amino acids. .
It is worth mentioning that when people eat radish when they are used to peel off the radish skin, they do not know that radish contains 98% of the calcium in the radish skin, so the radish is best eaten with skin. Of course, radish is good, but there are also taboos when eating. Due to the radish's sweet and cold nature, the spleen and stomach are deficient, and those who do not eat or who are frail are advised to eat less; if the radish is broken, take ginseng, raw and cooked ground, and fleece-flower root, etc. Do not eat after tonic, otherwise it will affect the efficacy. In addition, because eating raw radish produces more gas, it is also unfavorable to ulcer disease, so patients with such diseases should eat less.
â– Yam
After the cold dew, Yiu concentrated on eating more root foods
At the Beijing Olympics, the surprising speed of Jamaican athlete Bolt has led people to speculate on the source of their full physical fitness. When talking about why his son was able to run so fast, what the boss of Bolt’s father, Wellesley Bolt, most wanted to thank was the yams in his hometown. In the old home of Bolt, there are thousands of yams of yams exported from here each year. "He just grew up eating yams. Yam created his power today." Wellsley recalled.
Yam is not only a Chinese medicine but also a good food. It is a familiar nourishing treasure. Studies have shown that the content of B vitamins in Chinese yam is several times that of rice, and the potassium content in minerals is extremely rich. What is more important is that yam is rich in a variety of biological active ingredients, including yam polysaccharide, mucin, saponin, allantoin, dehydroepiandrosterone, and the like.
According to Jia Shiqi and others of the Henan Academy of Traditional Chinese Medicine, it was found that oligosaccharides in Chinese yam have a very good immunopotentiating effect. The biological active substances in yam have a good anti-aging effect, which can increase the ability of animal immune cells to proliferate and delay the aging of thymus.
Yam mucous protein can improve the immune function of animals and improve cardiovascular function. Dehydroepiandrosterone contained in yam also has many functions such as strengthening immunity, improving memory, calming sleep, delaying bone and muscle aging, and preventing arteriosclerosis. Aging effect.
The mannan in yam is a type of hemicellulose that dissolves in water and can swell by 80 to 100 times after absorbing water. After eating, the size of the mannan is larger in the stomach and it is easy to have a feeling of satiety. The mucin can also reduce blood. Cholesterol prevents lipid deposition in the cardiovascular system and helps prevent arteriosclerosis.
In addition, yam has an adjuvant effect on diabetes, in addition to easy to produce a sense of satiety, which is conducive to controlling food intake, mannan also has the function of improving glucose metabolism and improving insulin sensitivity. Due to the high starch content in yams, it is better to use yam as a substitute for a portion of staple foods when eating yam, that is, to appropriately reduce the amount of staple foods, especially diabetics, so as to avoid the problem of excess energy.
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